Nucleotide are composed of phosphate group, a sugar , and a nitrogenous base. dna is made up of long strands of nucleotide. which part if the above molecule can differ between nucleotide?
a. the sugar
b. the phosphate group
c. the nitrogen group
d. there is no differing structure in nucleotide

The answer to your question is: A and C.

Explanation:

A.the sugar  Sugar is different between nucleotides from RNA and DNA, in RNA there is ribose and in DNA, deoxyribose.

B. the phosphate group  it does not change between nucleotides.

C.the nitrogen group  Nitrogenous bases change among nucleotides, there are 5 bases: Cytosine, Thymine, Uracil, Adenine and Guanine.

D. there is no differing structure in nucleotide This option is wrong because A and C change.

Option C is the correct answer. Nitrogenous base is the molecule that differ between nucleotide.

Nucleotide:

From the above discussion, Option A, B, and D is incorrect.

So, we can conclude that Nitrogenous base is the molecule that differ between nucleotide.

For more about nucleotide you can refer to the link:

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any abiotic or biotic factor in an ecosystem that causes a population's size to slow or decrease is a limiting factor.